L68B2 Mast Section Self-examination of Tower ceiling lifting and rotary installation

04-11-2019

Standard requirements for self-inspection of Tower lifting and rotation:


1. A balance valve or hydraulic valve shall be provided and shall be connected to the cylinder with a hard tube.


2. When there is no central centralized power ring, a rotary limit should be set. The rotating part should be able to rotate freely in the non-working state. No stopper should be set up.

L68B2 Mast Section L68B2 mast section good at  in this field

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